Struggling to create STFT form FFT

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shawn finley 2021-8-12

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https://ww2.mathworks.cn/matlabcentral/answers/897162-struggling-to-create-stft-form-fft

评论： shawn finley 2021-8-16

Due to the version of Matlab that I am running (R2018a) I can not use the stft or the spetrgram functions that are available in later versions.

I need to use the fft() comand with a time interval (or window )and I am struggleing to do so below is my current code.

The ultimate goal is to get a velocity plot from the signal.

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Answer 1

Yazan 2021-8-15

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https://ww2.mathworks.cn/matlabcentral/answers/897162-struggling-to-create-stft-form-fft#answer_767237

编辑：Yazan 2021-8-15

There are several open-source Matlab-based time-frequency toolboxes, which all provide implementations of the STFT. Check some of them, which can be found by a simple google search. One of them is an old toolbox provided by F. Auger. A more popular one probably is the one developed by B. Boashah. Moreover, Matlab provides a function for computing the spectrogram, which was introduced before R2006a.